/**
 * Materialize Accessibility Enhancements CSS
 * WCAG 2.1 Level AA Compliance Styles
 */

/* Screen Reader Only Class */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.sr-only-focusable:focus,
.sr-only-focusable:active {
    position: static;
    width: auto;
    height: auto;
    overflow: visible;
    clip: auto;
    white-space: normal;
    padding: 0.5rem 1rem;
    background-color: #26a69a;
    color: white;
    text-decoration: none;
    z-index: 10000;
}

/* Focus Indicators - Enhanced for WCAG 2.1 */
.keyboard-nav *:focus {
    outline: 3px solid #26a69a !important;
    outline-offset: 2px !important;
    box-shadow: 0 0 0 3px rgba(38, 166, 154, 0.25) !important;
}

/* Specific focus styles for buttons */
.keyboard-nav .btn:focus,
.keyboard-nav .btn-flat:focus,
.keyboard-nav .btn-floating:focus {
    outline: 3px solid #fff !important;
    outline-offset: 2px !important;
    box-shadow: 0 0 0 3px rgba(38, 166, 154, 0.5), 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.12), 0 1px 5px 0 rgba(0, 0, 0, 0.2) !important;
}

/* Focus styles for links */
.keyboard-nav a:focus {
    outline: 2px solid #26a69a !important;
    outline-offset: 2px !important;
    background-color: rgba(38, 166, 154, 0.1);
}

/* Focus styles for form elements */
.keyboard-nav input:focus,
.keyboard-nav select:focus,
.keyboard-nav textarea:focus {
    outline: 2px solid #26a69a !important;
    outline-offset: 1px !important;
    border-color: #26a69a !important;
    box-shadow: 0 1px 0 0 #26a69a, 0 0 0 3px rgba(38, 166, 154, 0.15) !important;
}